The perimeter of an equilateral triangle is 21.33 centimeters. What is s, the length of each side of the triangle.

Answer: Each side of the triangle equals 7.11 centimeters

Step-by-step explanation: The question states that what we have is an equilateral triangle. That's a triangle with all three sides equal. Having that in mind, if one side measures 2cm for example, then the other two sides measure 2cm as well. Hence if one side of the equilateral triangle measures x (the dimensions are still unknown), then the other two sides each measure x as well. If the perimeter of the triangle is given as 21.33 cm, and each side of the equilateral triangle is x, then

x + x + x = 21.33

3x = 21.33

Divide both sides of the equation by 3

x = 7.11

Therefore, each side of the equilateral triangle equals 7.11 cm